Special Offer Batterfly-shaped Magnesium Firesteel Fire Starter Flint Outdoor Emergency Survival Tools with Ruler Scale Bottle Opener Function For Camping Backpacking Fishing Hunting Outdoor Survival Green The bestbuy special offer magnesium Fire Starter Flint scale bottle opener for Camping Hiking Trip Green Durability: can be lit with a thousand times the correct use. Reliability: Can be used in a variety of environmental, can be turned on even if dropped in water. Easy to carry: small size is very convenient to carry, you can put it in your bag or your pocket briefcase or carry on keyring.With lanyard for carrying. Multifunction: can be used as rule,scale and bottle opener